Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fda2496ab9dac6a7785dca19b31fadddbfeb60941dd8e40abeb9ad851af9e0d6' 
  AND token = '+XHALVmUAjxw4YBuQqio6O1G/eMjY2FIcJq0hVhHa1U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00078

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}